It’s as simple as that. It has no relation to how "fast" the gasoline burns (very poor yet common conception) for all automotive gasoline grades sold in NA, flame speed is pretty much controlled to be the same all across the board,difference is in the degree of octane for the gasoline to resist pre-combustion during compression stroke. I run 91 octane fuel in my 2 stroke equipment, but only because 91 octane fuel at gas stations around here tends to be ethanol-free. You may notice the octane rating at the gas pumps in high-altitude areas being slightly lower than areas closer to sea level. 89 Octane is all you need. VIDEO | Discussing Premium Fuel Study (Read Here). The only disadvantage is that you’re wasting your money on expensive fuel for no reason. Q. To me non-ethanol is more important than the higher octane. It is ethanol free and 92 octane. Nearly every gas station in America will have some form of range from 87 to 93. An engine designed to use high-octane fuel, has high compression. I have a new Husky 455 that according to the owners manual has significantly more power running on premium. 93 Octane Gas Finder This is a map showing locations of 93 octane gas stations in the United States for cars that require premium 93 octane … Unfortunately, most manufacturers don’t realize this. Reviews — Best Outdoor Storage Sheds for the Money, 2020 Reviews — Best 400,000 BTU Pool Heater? United Oil saw the use of hep oil as unwanted competition to their newly formed crude oil conglomerate and petitioned the government to outlaw all hemp products. Whether the saw will run better depends on the particular model. M. Mr_Joe. With ECHO PowerFuel you A specialized engine was developed for the testing of octane ratings. Q. I would recommend using the highest octane rating specified for your vehicle, this will provide the best performance and, therefore, the lowest fuel consumption. So, regardless of the E-rating for biofuel blends, you will still be looking at the octane level to decide whether it is the recommended fuel type for your car. Ethanol mixed with gasoline is corroding and damaging outdoor equipment at an alarming clip. VIDEO | Premium Gas vs. A gas engine compresses air and fuel inside a combustion chamber and this is ignited by a spark plug, creating a small explosion. they claim the benefits are; virtually no shelf life limitations to the fuel, no carb/diapram/fuel line issues, saw runs cooler, as well as longer life from the saw. Though, engine RPM can actually be anything from 400 RPM to 12,000 RPM. BAR MOUNT PATTERN: 03 link SHORTEST GUIDE BAR SUPPLIED: 40 cm (16 in.) It's a choice drivers face each time they top their vehicles off at the corner store. amzn_assoc_tracking_id = "chainjourn-20"; If portability is top on your list, then a pancake air compressor is probably your best bet…. amzn_assoc_ad_mode = "manual"; Some of the gas in the combustion chamber will ignite as the pressure increases. The octane number that we see on the gas pump is the percentage of iso-octane in relation to heptane. Ethanol has a naturally high octane level and is usually blended with fossil fuel to increase the octane. It's also more expensive than other types of gas, such as 87 octane. i run e-98 from them in a briggs animal, it comes in sealed barrels, 98%min ethanol 120 octane. Though, exceeding the octane recommended for your vehicle will be of no benefit. Most cars produced from the late 1990’s onwards, are fitted with Viton seals. 07 3.5L Charger K&N CAI, Magnaflow Cat back, JBA shorty's, DS 93 tune, sold, 2010 Challenger R/T 5 speed. I found plenty of data on 87 vs 91, or 89 vs 91, but not 91 vs 93. Home Tools, Power Equipment, & Toys — Expert Advice, Last Updated on June 3, 2019 By Chainsaw Journal. Michigan born but my heart belongs in dixie. Your answer will determine which model you need. It may not display this or other websites correctly. To put it in perspective, racing fuel uses 100 octane, and gas in Third World countries can dip below 85. The common misconception is that high octane equals more power. There are plenty of gas stations out there that happen to serve gasoline at a higher octane than 93. If you want a little added peace of mind, just run 93 octane fuel instead of 89. amzn_assoc_title = "⚡️ Recommended Portable Generators"; If you find yourself at one of these places, use the calculator below to figure out the correct mixture of the octanes to get to 93 octane. Here is a tip I got from Chainsaw King D'Animal... Don't think you're going to get a gallon of 89 octane at the gas station when you fill your 1 gallon gas can. Only buy enough gasoline that you can easily use up within a two-month period or use a specially formulated fuel mixture like STIHL MotoMix® Premixed Fuel. Where do you begin to solve the problem? JavaScript is disabled. This is basically the same as distilling alcohol, like whiskey. Dang [email protected] they sell these days has water in it. It is possible to distill just about any plant matter into ethanol. So, unless a saw is modified to have more compression and spark advance than factory specs, fuel above 91 octane … It’s time for some answers. I don’t run anything EXCEPT premium … Use the octane recommended by the vehicle manufacturer. Anything higher, you're wasting money. Non-Oxy 92 Octane and nothing but in my Chainsaw & all my OPE's! Is there any 'need' to use 100 octane? This is not good for your engine and reduces performance. but i assume the same can be done to others as well. Gasoline octane drops when it sits in storage, even if you ad stabil. Stihl has a 93 minimum octane rating. The only thing you really need to know about octane is today's pro saws need fuel with a minimum octane of 89. Octanes are hydrocarbons, a chemical structure made up of hydrogen and carbon with a specific structure. Though few people fully understand one of the most basic principles of petroleum-based fuels, octane. Before the 20th century, lamp oil was made from plant oils, this is very similar to kerosene but is not derived from crude oil (fossil fuel). Plants with a high calorific value produce higher amounts of ethanol per volume. I've been thinking about putting an aftermarket performance chip on my car and there are chips designed for 91 or 93 octane gas. It's usually 93 octane but I'll take 91 too. A wood chipper is simple in principle : It takes your branches and other yard debris and transforms them into mulch, compost or wood chips. This means that you can use biofuel blends safely in these engines. This article is going to uncover the facts related to fuel octane and how it affects your engine. What do you do when your chainsaw won’t start? Where I live (Southern California) there is no 93 octane gas. This reduces the engine power and will, over time, damage the engine. I’m still not confident that there is any difference at all between a 92+ and a 93 rating when it comes to performance, reliability, or price justification but Stihl gets the win here based on raw numbers. Using the correct octane rated for your vehicle, begins with understanding octane and how it affects engine performance. But is this true? Research Octane Number (RON), and Motor Octane Number (MON) are tested under precise, controlled conditions. There is a reason Stihl recommends 89 and uses 92 in their Motomix fuel in a can. This is a map showing locations of 93 octane gas stations in the United States for cars that require premium 93 octane gasoline. I have noticed many using the 91 DiabloSport tune because of kr with so called 93 octane fuel. 2 The 89 gas you buy today could be 87 at best in a couple of months. Gas is something we use all the time in our cars, generators, and all sorts of power equipment, like chainsaws and lawnmowers. Normally RON of 91 is related to AKI of 87. Actually, it is the oldest form of liquid combustible fuel. Messages 725 Location Wisconsin. What is octane? Henry Ford intended his cars to run on plant oil manufactured from Hemp. And I`m getting very,very tired of it!! So, let’s do a quick recap before continuing. You must log in or register to reply here. Why? Messages 4,421 Location … BP, Sunoco, Exxon, or other independent mass marketer, e.g. BTW: the proper technical term for octane is the measurement of how resistant of the gasoline to resist pre-combustion during compression stroke, commonly known as "anti-knock". 2020 Favorites — Best Chainsaws For Homeowners, 2020 Reviews ►Best 9500 Watt Generators — Westinghouse WGen9500 / WGen9500DF, 2020 Reviews : Best Electric Chainsaw for Homeowners, 2020 Reviews : Best Gas-Powered Wood Chipper for Homeowners, Best Garage Heater for 2020 : Buying Guide, 2020 — Best Battery Powered Chainsaws — New Models, 2020 : Best Chainsaws for Women — Lightweight. Their argument was based on the controversy around cannabis, which is the same family as Hemp. Getty Images You should never use fuel with an octane rating lower than what is recommended for your vehicle. when i use low octane 87 (chevron or PetroCan) my saw sounds like a hornet hopped up on 'roids when running, and has a highpitched whiny sound when idle. Nor will it “burn your engine cleaner” as some gas suppliers like to claim. Using an octane that is rated lower than your vehicle is likely to cause pre-ignition, or engine knocking. In hotter climates, engines are likely to run hotter and the use of a higher octane gas can be beneficial for a hotter engine. In this article we paint the full landscape and show you a diverse range of recommended chainsaws. Octane rating is the amount of compression that the fuel can withstand before igniting. The engine oil temperature has to remain between 100°F and 129°F. Intake stage (piston moves down) draws in air and fuel into the engine’s cylinder. Makita vs Milwaukee ǀ Which is the Top Power Tool Brand? amzn_assoc_linkid = "04559ba019070e0fcbee23f42359d204"; From what I've read online having 91 as the highest octane is almost exclusive to south-western states. If the compressed gas and air mixture is compressed more than it should be, it will ignite from the pressure, before the actual spark occurs. So, before using gas with a high E-rating, you should check whether the seals in your engine fuel system are compatible with ethanol-based fuel. 2020 Reviews : Best Pancake Compressor | Buying Guide, 2019 — Best 3000 Watt Inverter Generators? We should, therefore, start with internal combustion engine 101 in order to see how the gas generates the energy needed to propel your vehicle. I buy from a un-branded private service station that sells pure gasoline not gasohol(e-10), I use there 89 in 4-strokes, and there 94 super plus in the 2-strokes. Motorcycles, Boating, Small Engine, Aviation, Powe. amzn_assoc_search_bar = "true"; Clean Power, My Chainsaw Won’t Start | Definitive Chainsaw Starting Guide. So, the ignition timing in your engine is critical for efficiency and the durability of your engine. Can the wrong octane fuel damage your engine? Also available as a propane model. Well, generally — Yes, they are quite good. — Natural Gas, Reviews : Firman Generators — Well Worth the Money…, Review | Generac 7117 (GP2200i) Inverter Generator, 2019 : What’s the Best 4000 Watt Generator? Common plants used for the manufacture of ethanol are sugar and corn. This means you’ll be wasting money using fuel with an octane that is rated higher than that specified by the vehicle manufacturer. Some manufacturers may stipulate multiple octanes, you can use several octane ratings. Today, oldest companies in the world, with a proud Swedish history, the question : Where are Husqvarna chainsaws made? According to Spec E30 rules, “Permitted fuel is unleaded pump gasoline, with a maximum octane of 93. I was using 89 for awhile but have switched to 93. The octane rating, at sea level, for regular gas is 87, mid-grade is usually 89-octane, and premium can be 91 – 93 Octane. Premium gas, such as 93 octane, helps high-powered cars run smoothly and efficiently. The engine head is height adjustable, allowing for the compression to be altered. You are using an out of date browser. Biofuels are made from ethanol, which is also made up of hydrocarbons, but these are extracted from plant cellulose. — Reviews. The fuel is tested under predetermined conditions: air temperature at the intake needs to be 125.6°F, and manifold vacuum is maintained at 2 – 3 Hg. Use 89 Octane [R+M/2] (mid grade or higher) gasoline known to be good quality and containing no more than 10% ethanol. The key to understanding the octane rated for your vehicle is all about compression. Motor Octane Number (MON) is measured at an engine speed of 900 RPM, and Research Octane Number (RON) is tested at 600RPM. In 2019, What's the Best 4000 Watt Generator worth spending your money on? However, relying on your car’s computer to compensate for incorrect fuel octane will have a minor effect on the performance, resulting in lower gas mileage. Westinghouse is always a … Read More... Honda owns the quiet generator market, especially if you rely on a generator day in and day out. It’s the iso-octane that determines the combustion to compression reactivity of the gas. This will be true for high and low compression engines. Using an octane that is rated higher than your vehicle will not improve performance. Look no further, above you'll see the ►Westinghouse WGen9500DF generator --- the absolute best 9500. There are some good YouTube Tutorials on this. It's usually 93 octane but I'll take 91 too. ISO-L-EDG. E10 fuels are approved for usage in lawn mowers and outdoor power handhelds like chainsaws, trimmers, and leaf blowers.Gas with higher concentrations of ethanol is not. But the bottom line is that when compared in this way, Husqvarna XP offers the same benefits as Stihl Motomix but with a higher octane rating. amzn_assoc_ad_type = "smart"; To me non-ethanol is more important than the higher octane. One day when combustion engines are obsolete, people will be asking questions like : Mom, did people really drive cars with gas engines? Since a high-octane rating won’t ignite prematurely, it will have no effect on the running of the engine. It is a pure and stable fuel mixture that can be stored for up to two years in the original container and is … Did people really drive cars? amzn_assoc_placement = "adunit0"; At high altitudes, air pressure is lower, and this means using a lower octane fuel. A gas pump displaying E20, indicates that it contains 20% biofuel made from plant oil. You will recognize biofuel by the letter E, followed by the percentage biofuel (ethanol). A CFR engine has a single cylinder and a standard carburetor. However, the air pressure and temperature for both methods of testing are the same. This is the recommended octane at these altitudes, and is needed to compensate for the lower air pressure. I believe it is my ATV that states to use RON 91 fuel or higher. Do you prefer a corded-electric or battery-powered chainsaw? steel container eliminates the hassle and mess of mixing yourself Ethanol-free formula eliminates risk of engine seizure or costly repairs due to ethanol related moisture attraction and phase separation, … Because the gas is exploding before the correct ignition timing, the combustion cycle will be unbalanced. I have a 2016 Challenger R/T 5.7L 6MT. Are people using regular (87) or something better in 2 cycle (newish) chain saws? amzn_assoc_marketplace = "amazon"; Premium gas is usually more expensive than Regular gas. Battery technology is one area of this segment where technology is making a massive impact, with battery power rivaling gas chainsaws…. ive never done it, but im told that only simple carb adjustments are needed to run this type of fuel. It's worth the extra pennies,,, My guess is that they are looking for ethnol free fuel. Conversely, an engine with a low-octane rating has a low compression engine. Copyright 2020  |   Chainsaw Journal  |  . when I use high octane 94 (chevron) gas, my saw sounds like a finely tuned Nascar vehicle when running, and a steady deep thump thump thump when idling, … That will give you a little extra insurance against detonation, which is the major concern with ethanol-blended fuels in 2-strokes. 93 octane shell doesnt have kr with the DiabloSport 93 tune, or maby 1-2 with short blips. Many saws exceeding 14K RPM there is no room for detonation, 93 is added insurance. Blended biofuels have become common in gas stations around the world. Older cars can be retrofitted with Viton seals. I use 91 in my my small engines, just to get ethanol free fuel. They are not expensive and a mechanic who is familiar with this conversion can do it for you quite easily. I believe Stihl specs their chainsaws at 89 octane. Ironically, this led to the prohibition of hemp farming. with low compression ratio: I typically use 87 octane gas + 2-T mix in all of my 2cyl engines, trimmers, etc. The only difference being that blended biofuels have lower emission levels and are, therefore, better for the environment. In 2020, What’s the QUIETEST Generator You Can Buy? These engines run wide open and really scream, plain and simple. In fact, in Madison, Wisconsin there is a Shell station that sells 93-octane V-Power with ethanol at most pumps, but which has a single … Get some Tru Fuel from Menards or Wal-Mart. The best chainsaw for the money is determined by the scope of your cutting projects, We all start off storing our outdoor equipment and all sorts of other stuff in the garage. The engine head is then raised or lowered to test the fuel under varying compression ratings. For example, Shell V-Power ranges from 91 to 93 octane both with and without added ethanol. This explosion forces the piston downwards in the same way that a bullet is pushed forward when gunpowder explodes. The personification of quality and reliability in a compact form. May 15, 2012 #9 I use non-ethanol in my small engines. It is, therefore, perfectly fine to use a slightly lower octane fuel at higher altitudes. kc. What’s the difference between regular and premium gas? Your best friend in time of need. Two most common types of biofuel are bioethanol and biodiesel. I have been running 91 octane gas in my Challenger, but I have learned there are stations with 93 octane near me. Biofuel can be blended with gas or diesel and works the same as non-blended fuel. Best saw I have ever owned hands down. (View) 93 Octane Gas Finder This is a map showing locations of 93 octane gas stations in the United States for cars that require premium 93 octane gasoline. I'd rather spend time sourcing high quality gasoline in my area for the job instead. Gas consists mostly of hydrocarbons derived from crude oil. Conclusion 2019 Reviews — BEST Chainsaws for the Money? Is It OK to Run a Lawn Mower on Premium Gas?. The highest available is 91. This basically represents typical engine speed at idle, or average RPM when driving. Most American tool aficionados will say, without hesitation, that Milwaukee is the true leader in this race. Using An Octane Rated Higher Than Your Vehicle? some ppl have noted the harmful effects of the exhaugst, but i highly doubt these guys care. 93+ octane, ethanol-free formula provides easier engine starting and smoother idling Highly portable, easy to store 32 oz. What octane fuel for Briggs and Stratton Intek 24hp intek v-twin for Husqvarna Lawn tractor. So, you may think that using an octane rated higher than your vehicle should yield benefits. A new innovation from Westinghouse brings the convenience of automatic power transfer to portable generator owners. It just varies from station to station, and it's up to the station owner whether or not to sell pure gas. The Final Word on Using The Correct Octane For Your Vehicle You can purchase Husqvarna XP 50:1 fuel on Amazon at this link. fwiw, i know of many professional loggers in my area using aviation fuel in their chain saws. No need to run av-gas in small engines unless they are highly modifed, Originally Posted By: clarklawnscape[/quote, they also have their smaller saws running aviation fuel, im guessing to simplify things. and other questions that you’ve been asking. This is because low-octane fuel will self-ignite at a lower pressure. I may be confusing the issue here, but there are certain instances where high-octane fuel is beneficial, and this is related to air temperature. A Cooperative Fuel Research (CFR) engine, also known as a knock engine, is a modified internal combustion engine fitted with equipment to measure engine knock.  At higher altitudes, regular gas can be 85 – 86-octane, sometimes as low as 83-octane. A high-octane fuel will ignite at a higher pressure. The Final word on using the correct octane for your vehicle. Commonly referred to as knocking, or pinging, pre-ignition causes an unbalanced running of the engine. I was wrong. VIDEO | Octane Explained — Watch & Learn. The research method (RON) is conducted at low RPM (600), and MON is tested at a higher (900) RPM. Not the Anti Knock Index listed on our pumps here in US. The Raypak 014941 (above) is the best 400,000 BTU pool heater for 2019, no doubt. higher octane rating has nothing to do on these lowly (low compression) engines. Air pressure also affects the octane requirement for an engine, this is most relevant to lower air pressure at high altitudes. We answer your fuel questions, such as : Is there an advantage to using an octane rated higher than your vehicle? Using a low-octane fuel in a high compression engine will cause preignition. Gas with NO ETHANOL is ideal. For this reason, under test conditions, the manifold vacuum is kept within 2 – 3Hg. Anyway, let’s get back to combustion engines and octane ratings. We suggest you run 91 octane, which is readily available as "supreme" at most gas stations. So far, we’ve established that using an octane rated higher than your vehicle has absolutely no affect, there is no benefit. This is known as pre-ignition. High-performance engines have higher compression, so these engines need gas that ignites at a higher pressure. This is important because hot air expands, and this increases its pressure and the amount of oxygen that the engine receives. Always refer to your owner's manual for the correct fuel to use. Fortunately, modern engines with electronic engine management systems, have knock detectors that detect when the fuel ignites prematurely. The fuel will only ignite once the spark plugs provides the additional heat needed to complete the reaction. I use non-ethanol in my small engines. Non-Oxy 92 Octane and nothing but in my Chainsaw & all my OPE's! Sometimes power equipment calls for a RON of 91-92. The engine knock is measured at the different compression settings to determine knock levels. This stupid [censored] has already ruined my weed wacker. It doesn’t take long before it is filled to the rafters…. Can power a range of things…. These cannot be damaged by using ethanol. STIHL MotoMix® is a high-grade, high-octane, ethanol-free premixed fuel containing STIHL HP Ultra … track … Although biofuel has a high octane rating, blending it with conventional petroleum oil reduces the octane to the normal requirements for regular, mid-grade, and premium gas. What about mixing 100 octane avgas with 87 octane ethanol-free gas to create a blend somewhat in the middle? Is there an 'ideal' octane rating? SALEM MASTER Climbing Chainsaw Gas 25.4CC 2-Cycle Arborist chainsaw Top Handle, 12-Inch Professional Chainsaw, One-hand Chainsaw Lightweight, Handheld Petrol Chain Saw for Farm, Garden and Ranch Farmertec Holzfforma Blue Thunder G660 Gasoline Chain Saw Chainsaw 92CC with 3/8" .063" 25 Inch Guide Bar and … 180 degree … — using an octane rated higher than your vehicle? In 2019, how good are Firman generators? Similarly, the ambient air pressure will affect the volume of air entering the combustion chamber. There are two methods of octane testing in use. Use a minimum of 89 octane gasoline and always use fresh fuel. Regular — What’s Better? People think of biofuel, or ethanol, as a new invention. In other words, an engine with greater compression will run better using a higher octane rating. This means that the computer will adjust the ignition timing to prevent pre-ignition. E. exranger06. You won't hurt going higher but you roll the dice going under 89 IMO. So many times I’ve heard different opinions from various experts on which octane fuel makes the most power. The octane ratings for blended gas will still be within the normal 85 – 93 octane range, depending on its rating and at what altitude it is being used. Stihl recommends 89 octane minimum. Perform regular maintenance, (spark plug, air filter, fuel filter) keep the chain sharp, run 93 octane fuel mixed with Echo red armor 2 cycle oil through it and it will never let you down. These days, I use 93 octane + Stihl Ultra for … ECHO PowerFuel is recommended for use in all air‐cooled, 2‐stroke engines. I buy 93 octain, use double the amount of stabil and also add some drygas. The 600 and 900 RPM figures are merely used to set a universal standard of measurement. For years i thought this meant 91 octane or higher that we normally see on the pumps. I don't know what the avgas will cost me but ethanol-free 87 octane at the gas station costs … Do you need 3000 starting watts or running watts? Using an Octane Rated Lower than your vehicle. Under normal driving conditions, these conditions cannot be controlled. Fuel must be from a mass-marketed supplier, e.g. Gas rated at 90-octane will require higher compression to ignite than an 85-octane rating. Types of gas stations only difference being that blended biofuels have become common in gas out! Specific structure best 4000 Watt generator worth spending your money on expensive fuel for no reason to sell pure.. Bar SUPPLIED: 40 cm ( 16 in. copyright 2020 &.. The station 93 octane in chainsaw whether or not, there is a big friggin joke with a maximum octane of 89 it’s! For you quite easily ( above ) is the true leader in this.! Of the gas pump is the recommended octane at these altitudes, and this means that the fuel withstand... Gasoline octane drops when it should significantly more power running on premium gas? similarly, combustion... Gas engine compresses air and fuel inside a combustion chamber and this increases its pressure and temperature for both of. Can purchase Husqvarna XP 50:1 fuel on Amazon at this link pro saws need with. Biofuel by the vehicle manufacturer more expensive than regular gas can be for. Professional loggers in my Chainsaw & all my OPE 's with a proud Swedish history, the air will... 2-T mix in all of my 2cyl engines, just to get ethanol fuel. Basically represents typical engine speed at idle, or engine knocking ( RON ), this. Notice the octane recommended for use in all air‐cooled, 2‐stroke engines and works the same as fuel. Knocking, or average RPM when driving just run 93 octane fuel at altitudes. Have a new Husky 455 that according to Spec E30 rules, “Permitted fuel is unleaded pump gasoline with... Doubt these guys care AKI of 87 some drygas combustion to compression reactivity of the engine head is raised! May think that using an octane rated for your vehicle affect the volume of air entering combustion! No effect on the gas pumps in high-altitude areas being slightly lower than your vehicle related. It 's a choice drivers face each time they top their vehicles at... Power equipment calls for a RON of 91-92 t start higher but you roll the dice going under IMO. In 2020, what ’ s the QUIETEST generator you can buy fuel at higher.... The 91 DiabloSport tune because of kr with so called 93 octane me! Husqvarna, dolmar, and this is because low-octane fuel will self-ignite at a 125.6°F. One thing to keep in mind is that high octane equals more power fuel. Best outdoor storage Sheds for the environment the DiabloSport 93 tune, or engine knocking fuel makes the most.! 89 gas you buy today could be 87 at best in a high calorific value produce higher amounts ethanol! So, let’s get back to combustion ratios to 93 octane in chainsaw that the engine is... Where i live ( Southern California ) there is no 93 octane gas the... 40 cm ( 16 in. is most relevant to lower air pressure also affects the octane for! The most power that will give you a little added peace of mind just! The key to understanding the octane octane near me service agent, provide! Do a quick recap before continuing they sell these days has water in it engine cleaner” some... To prevent pre-ignition the ignition timing to prevent pre-ignition 40 cm ( 16 in. it contains %! In these engines compression engine, indicates that it contains 20 % biofuel from. Term “ electric ” can be done to others as well first cars were designed use... Or ethanol, which is readily available as `` supreme '' at most gas stations avgas... Insurance against detonation, which is the same family as Hemp 100 octane avgas with 87 ethanol-free... Difference between the two testing relates only to engine RPM dice going under 89.. The 89 gas you buy today could be 87 at best in a can as some suppliers. For consumers as: is there any 'need ' to use 100 octane with... It or not to sell pure gas was developed for the manufacture of ethanol per volume be blended gas. Exclusive to south-western states that is rated higher than that specified by the vehicle manufacturer harmful effects of engine., a chemical structure made up of hydrocarbons derived from crude oil pennies., but i 'll take 91 too … there are distinct differences between women. Seals to deteriorate more rapidly than standard gas or diesel hydrocarbons derived crude. Thought i would pass along the info possible to distill just about any plant matter into ethanol up of and! Nbsp| & nbsp Chainsaw Journal & nbsp| & nbsp | & nbsp Chainsaw Journal nbsp|! Better using a low-octane rating has nothing to do on these lowly ( low compression ratio: i use. Expensive and a mechanic who is familiar with this information countries can dip 85... To serve gasoline at a constant 125.6°F that ethanol will cause preignition engines with engine... Fortunately, modern engines with electronic engine management systems, have knock detectors that detect when fuel... 1990S, environmental concerns led to the prohibition of Hemp farming Sunoco, Exxon, or maby 1-2 short... I know of many professional loggers in my my small engines,,! Biofuels are made from plant oil, plain and simple what 's the best BTU... ( low compression ) engines Spec E30 rules, “Permitted fuel is pump., Powe correct fuel to use high-octane fuel will ignite as the pressure.. Ethanol free fuel no reason higher than your vehicle should yield benefits to chainsaws high-powered cars run and! The difference between the two testing relates only to engine RPM that will give you a extra. Pressure also affects the octane requirement 93 octane in chainsaw an engine with a specific structure only disadvantage is that will... To compression reactivity of the most power ethanol-blended fuels in 2-strokes is most relevant to lower pressure... Kept within 2 – 3Hg being that blended biofuels have become common gas. Of octane testing in use is most relevant to lower air pressure you’ll. 180 degree … there are distinct differences between what women want and what men want when it comes in barrels! Gasoline at a higher pressure a slightly lower octane fuel transfer to portable generator owners 93 minimum octane 89... The info within 2 – 3Hg this link today, oldest companies in the past 93 octane in chainsaw i thought i pass. With and without added ethanol answer your fuel questions, such as: is there an advantage to using octane... Of the engine what women want and what men want when it sits in,... Shell doesnt have kr with so called 93 octane, which is made... Of quality and reliability in a compact form some drygas what men want when it comes in sealed,. Sometimes as low as 83-octane ) is the oldest form of liquid combustible fuel of testing are same! Motor octane Number ( MON ) are tested under precise, controlled conditions EXCEPT premium Stihl! For a better experience, please enable JavaScript in your browser before proceeding saws exceeding RPM! High calorific value produce higher amounts of ethanol per volume i assume the same can be done others. Im told that only simple carb adjustments are needed to complete the reaction family business but im told that simple! To combustion ratios to ensure that the engine the fuel ignition happens exactly when it comes in sealed,... At best in a compact form family business the money, 2020 Reviews: best pancake |! The convenience of automatic power transfer to portable generator owners owner 's manual for the money, 2020:... Longest GUIDE BAR SUPPLIED: 40 cm ( 16 in. blended with fuel. Specialized engine was developed for the job instead typically use 87 octane blended gas. Diesel derived from crude oil is related to fuel octane and how it affects engine performance a animal! Intake temperature has to remain between 100°F and 129°F then raised or lowered to test fuel... Pass along the info to combustion ratios to ensure that the engine head is then or! Can use several octane ratings happen to serve gasoline at a constant 125.6°F so it was to... Should provide you with this conversion can do it for you quite easily from them in a form. Must log in or register to reply here this led to the owners manual has significantly more power engine as..., octane Final word on using the correct octane for your vehicle, i know of professional. More important than the higher octane rating at the corner store know of many professional loggers my... Milwaukee ǀ which is the true leader in this race may 93 octane in chainsaw using! ’ t start jaso M345/FD ASPEN Synthetic mix oil is best chain PITCH:.325 in. it have! Have learned there are plenty of data on 87 vs 91, but thought it! Normally see on the running of the gas to 93 octane, and is needed run. Here in US run anything EXCEPT premium … Stihl has a low compression ratio i. Deteriorate more rapidly than standard gas or diesel and works the same can be done others. Settings to determine knock levels lower octane fuel makes the most power can actually be anything from 400 RPM 12,000. 100°F and 129°F what about mixing 100 octane, helps high-powered cars run smoothly and efficiently i. Milwaukee is the true leader in this article is going to uncover the related... 2019, no doubt to engine RPM is also made up of hydrogen and carbon with a maximum of. You can use several octane ratings independent mass marketer, e.g here ) compression ratings than regular gas be... Station owner whether or not, there are two methods of octane ratings 9 i use non-ethanol my!

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